简单的字符串反转

import java.util.*;public class Example7 {public static void main(String []args){Scanner in=new Scanner(System.in);//方法1：用java自带的函数反转System.out.print("请输入你要反转的内容：");String a=in.next();StringBuilder b =new StringBuilder(a);System.out.println(b.reverse().toString());//方法2：用char数组反转char ch[]=a.toCharArray();int start=0,end=ch.length-1;char temp;while(start<end){temp =ch[start];ch[start]=ch[end];ch[end]=temp;start++;end--;}String c=String.copyValueOf(ch);System.out.print(c);}}